Valve mechanism.



i PATENTED JULY 30, 1907. J. P. MERN.

VALVE MEGHANISM.

APPLIouIoN FILED un. s. 190e.

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'UNITED STATES PATENT.

JOHN PHILLIPS MERN, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF TOJOI-IN E. DEIGNAN, OF BROOKLYN, NEW YORK; JAMES H. DEIGNAN ADMINISTRATOROF SAID JOHN. E. DEIGNAN, DEOEASED.

VALVE MECHANISM.

Speeieation of Letters Patent.

Patented July 30, 1907.

Application tiled January 2,1906. Serial No. 294,254.

To all whom it may concern:

Be it known that JOHN PHILLIPS MERN, a citizen of the United States,residing at Brooklyn, in the county oi Kings and State oi' New York, hasinvented a new and useful Valve Mechanism, of which the following is aspecification.

This invention while relating more particularly to valve seat structuresof hydrants, is not necessarily limited thereto, but may beadvantageously employed in other apparatus, wherein valves are used.

The principal object oi the invention is to provide a novel and simplevalve seat that can be readily placed in position and removed, so that'if the valve mechanism becomes worn or deranged, access thereto may bereadily gained, and the injured or inoperative parts repaired orreplaced with ease and expedition,

A further object is to provide securing means for the valve seat,whereby the latter may be effectively fastened in the casing, said meansalso preventing leakage through the joint between the seat member andcasing.

The preferred embodiment of the invention is illustrated in theaccompanying drawings and described in the following specification.

In said drawingsz-Figure l is a vertical sectional view through ahydrant showing the valve mechanism in place therein, together with thepositioning and locking tool employed in connection therewith. Fig. 2 isa sectional view through the said mechanism on an enlarged scale. Fig. 3is a horizontal sectional view, taken on the line 3 3 of Fig. 2. Fig. 4is a horizontal sectional view on the line 4 4 oi Fig. l. Fig. 5 is adetail perspective view of the valve seat member. Fig. 6 is a sideelevation of the head of the tool employed in positioning and securingsaid member.

In the embodiment illustrated, a coupling elbow or casing 7 is employedhaving a valve chamber 8 therein, and an upper inwardly extending wallportion 9 provided with a central opening l0, forming a valve seatreceiving socket. A casing 1l is suitably mounted on the elbow or casing7, and is provided at its upper end with the usual outlet nipples l2.The inwardly extending wall portion 9 of the casing 7 is provided withspaced lugs 13, and the marginal portions 0i said wall about the opening10 is beveled, as shown at 14. This beveling includes the upper sides ofthe lugs 13, as shown in Fig. 3.

A detachable valve seat member in the orm of a sleeve l5 is employed,which sleeve is arranged to enter the opening 10 between the inner endsof the lugs 13. The lower portion of said sleeve is provided with aplurality of outwardly extending lugs 16 arranged to pass through thespaces between the lugs I3 of the casing and engage the underside ofsaid lugs 13 after having been so passed through, and upon the turningof the sleeve. Stops 17 arranged at the ends of the lugs 16, limit thesaid turning movement. An intermediate portion of the outer face of thesleeve or valve seat member is beveled, as shown at 18. This portion isdisposed in opposition to the beveled margin 14 oi the casing wall 9when the sleeve is in place therein. The upper end of the sleeve isexteriorly threaded, as shown at I9, and screwed thereupon is a clampingnut 20. A packing gasket 2l preferably formed of shee't lead or othersuitable ma-l terial is arranged beneath the clamping nut, and isadapted to be i'orced thereby into the tapered annular recess formed bythe beveled portions 14 and 18. The lower end of the sleeve 15 isinteriorly beveled, as shown at 22, forming an annular seat to receivethe usual valve 23, said valve being carried by the lower end of thestem 24 extending longitudinally through the casing ll and operated inany desired manner.

The clamping nut 20 is provided with upwardly extending studs comprisingstems 25 having heads 26 at their upper ends, These studs are arrangedto be engaged by the lower disk head 27 of a positioning and securingtool 28, the said head 27 being carried by a tubular shank 29, having asuitable handle 30 at its upper end, the shank being oi su'llicientlength to pass downwardly into the casing, so that the head 27 willengage the studs. This head, as shown in Fig. 4, is provided with slots3l, the intermediate portions oi which are of sufficient size to permitthe heads 26 of the studs to pass therethrough, said slots tapering inopposite directions, and the end portions being of less width than thediameter of the head 2G, but of suiicientl width to receive the stems 25oi the studs.

It is believed that the application of the valve seat structure to thecasing may now be readily explained. In practice, the upper ends of thethreads oi the valve seat sleeve l5 are preferably mutilatedsufficiently to prevent the nut from completely unscrewing therefrom.This nut is raised to its highest point upon the sleeve, and the studsare engaged in the slots 3l of the head 27 oi the positioning tool. Itwill thus be clear that the valve seat member is attached to the tooland can be lowered into place. After the lugs I6 of the member' havebeen passed through the space between the lugs 13 oi the casing, theteol is turned, thereby rotating the sleeve and bringingthe lugs 1Gbeneath said lugs 13. When thus positioned, the stops 17 will preventthe further rotation oi the sleeve, so that a continued revolution ofthe tool will cause the clamping nut to -be screwed downwardly upon saidsleeve.

Asaresult, the packing washer or gasket will be forced Spaces betweenthe lugs f the Casing and engage the into the joint between the sleeveand casing wall 9, and consequently leakage therethrough will beprohibited` At the same time, the said nut will draw the valve seatsleeve upwardly, and securely clamp the lugs 16 against the lugs 13 ofthe casing, thereby effectively securing the device in place. When theparts have been thus disposed, it only becomes necessary to turn thetool 30 in the reverse direction until l0 the headed studs of the nutare in the intermediate portions of the slots 3l., whereupon said toolmay be detached. To remove the valve seat member, the reverse of theabove described operation is all that is necessary. It Will thus be seenthat an exceedingly simple and effective valve structure is provided,which can be removed and replaced Whenever found neces sary ordesirable.

From the foregoing, it is thought that the construction, operation, andmany advantages of the herein 20 described invention will be apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction may be resorted to without departing from thespirit or sacrific- `ing any of the advantages of the invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent,

isz-

' 1. In a hydrant, the combination with a casing having a valve seatreceiving socket, and a portion that extends .inwardly thcreinto, of avalve seat member that nts in said socket, and inner and outer clampingelements carried by the valve seat member, the inner' ot such elementsbeing movable past the inwardly extending portion of the casing andengaging the inner side thereof, the outer of said elelnents beingmovable on the member toward and from the inner element and clampingupon the outer side of said inwardly extending portion.

2. In a hydrant, the combination with a casing having 4() a valve seatreceiving socket, and a portion that extends inwardly thereinto, oi. avalve seat member that iits in said -socket, inner and outer clampingelements carried by the valve seat member', the inner of such elementsbeing movable past the inwardly extending portion of the casing andcoperating with the inner side thereof, the outer of said elements beingmovable on the member toward and from the inner element and cooperatingwith the outer side of said inwardly extendingportion, and packinginterposed between one of the elements and the inwardly extendingiortion said acking surrounding the member.

e l i s 3. In a hydrant, the combination with a casing having a valveseat receiving socket, and a plurality of spaced lugs extending inwardlythereinto, of a valve seat sleeve that iits in said socket and has aplurality of outwardly extending lugs on its lower portion that passthrough the undersides of said lugs, and a clamping nut threaded on theupper portion of the sleeve and engaging the casing to draw the memberoutwardly and the lugs thereof into engagement with the lugs of thecasing.

4. In a hydrant, the combination with a casing having a valve seatreceiving. socket, and an inwardly extending portion, of a valve seatmember that fits in said socket, clamping elements carried by the valveseat member and embracing'the inwardly extending portion, said elementsbeing` relatively movable 0n the member towards and from cach other, anda packing device mounted on the member and interposed between theclamping elements, said packing device being forced by the same, upontheir relative movement, into engagement with the casing to' preventleakage between said casing and the member.

5. In a hydrant, the combination with` a casing having a valve seatreceiving socket, and an inwardly extending wall poi-tion surroundingthe same, of a valve seat sleeve that detachably engages in the socket,said sleeve having a lower outwardly extending portion that engagesbeneath the wall portion, a clamping nut threaded on the upper portionoi the sleeve, and a packing gasket located beneath the nut and forcedthereby into engagement with the said wall portion ot the casing.

(i. In a hydrant, the combination with a casing having an inwardlyextending wall portion provided with an openin;l forming a valve seatreceiving socket, said wall portion having an upper beveled marginsurrounding the opening and being furthermore provided with inwardlyextending lugs, oi a valve seat sleeve that detachably engages in theopening, and is provided with lugs engaging beneath the lugs of the wallportion, said sleeve having an outer beveled portion disposed inopposition to the beveled margin ot the wall and having an upperthreaded end, a packing gasket arranged to engage the beveled portionsof the wall and sleeve, and a clamping nut threaded on the upperportions of the sleeve.

'i'. In a hydrant, the combination with a casing having a valve seatreceiving socket, and an inwardly extending portion, of a valve seatmember engaging in the socket, said vmember having' an outwardlyextending lug engaging the underside of the inwardly extending portion,a clamping nut threaded on the upper end of the member, and meanscarried by the upper side of the nut for engaging the same with apositioning and locking tool.

S. In a hydrant, the combination with a casing having a valve seatreceiving socket, and an inwardly extending portion, of a valve seatmember engaging in the socket, said member having an outwardly extendinglug engaging the underside of the inwardly extending portion, a clampingnut threaded on the upper end ot' the member, and threaded studsprojecting from the upper side of the nut and arranged to be engaged bya positioning and locking tool. l

In testimony, that I claim the foregoing as my own, I have heretoafiixed my signature in the presence of two witnesses.

JOHN PHILLIPS MERN.

Witnesses:

l. B. EDnIDGn, HOWARD SCANTLEBURY.

